Watch-key



(No Model.)

M. W. GEARY.

WATCH KEY.

No'. 339,875. Patented Apr. 13, 1886.

lim... l .Il l

UNITED STATES PATENT OFFICE.

MORTON ALLAOE GEARY, OF LOOK HAVEN, ASSIGNOR OF'ONEHALF TO JOHN D.BROVX, OF SNOV SHOE, PENNSYLVANIA.

WATCH KEY.

SPECIFICATION forming part of Letters Patent No. 339,875, dated April13, 1886.

Application tiled November 6, 19H5. Sei-inl No. 181,050. (No model.)

To all whom, it may concern:

Be it known that l, Monroe: WALLACEy GEARY, a citizen of the UnitedStates, residing at Lock Haven, in the county of Clinton and State ofPennsylvania, have invented a new and useful Improvement in lVatch-Keys,of which the following is a specication, reference being had to theaccompanying drawings.

[C My invention relates to watchkeys, the object being to provide adevice of this character whereby a watch may be wound without removingthe hand from the key or the key from the key-post of the watch, and toprovide a key which will fit posts of diiiereut sizes and will bethoroughly dust-prooi'.

With these ends in view theinventiou consists in the combination, withan outer casing or tube having a series of ratchet-teeth at its lowerend, of an interior casing carrying mechanism, and a collar rigidlyconnected with the interior tube, and having a series of ratchet-teethto engage the teeth on the outer casing.

The invention `further consists in the improved construction andcombinations of parts hereinafter fully described, and pointed out inthe claims.

In the drawings, Figure l is a side elevation of a watch-key constructedin accordance with my invention. Fig. 2 is a vertical section of thesame, and Figs. 8, 4, and 5 are detail views of parts detached.

In the accompanying drawings, in which like letters of referenceindicate corresponding parts in all the figures, A represents au outertube or casing, which is l'ormed at its lower end with a series ofratchetteeth, (t.

B represents an inner tube or casing, which 4o is itted in tube orcasing A so as to turn loosely therein, and is rigidly connected with acollar, O, which is fitted on the lower end thereof below casing A, saidcollar having a series of ratchet-teeth, b, upon its upper end,

5 which are adapted to engage with the teeth a. The collar O is fittedupon the tube or casing B, and held by a transverse pin or rivet, c.Vithin the inner casing, O, are arranged the clamping-jaws D, which areconvex on their 5o inner faces, so that when they are lowered they willbe spread apart by the pin or rivet c, which tits between said jaws. Theouter sides of said jaws are concave, so that they may be spread oropened to their fullest extent without coming in contact with the innercasing.

Upon the inner side of the outer casing, near the upper end thereof, isprovided a seat, d, which supports a circular metallic plate, e, havinga central hole or opening.

E represents apush-bar, which is formed at 6o its lower end withspring-arms F, having hooked ends f, which are adapted to engage theupper ends of the clamping -jaws, which are provided with notches g, toreceive said hooked ends. The push-bar E extends through the hole oropening in the plate e, and its up per end is secured in a cap, G, bymeans of a pin or rivet, lt. The said cap G tits within the outercasing, and may be formed with an eye or loop, j, by which it may besuspended 7o from a watch-chain.

'Upon the bar E is a spiral spring, t', which bears against the underside of the cap G at one end aud against the upper side of the plate eat its other eud. It will thus be seen that when the cap G is depressedthe clamping-jaws will be spread to receive the keypost. I have providedan elongated slot, 7c, in the pusli-bar, and fitting in the same is apin, l, which is secured at its ends in the up- 8c per end of theinterior casing. It will thus be seen that the vertical movement of thesaid push-bar is limited.

I represents a spiral spring which incloses the inner casing and bearsagainst outwardly- 8 5 extending nibs on the upper end of the same atone end, and against an interior shoulder on the interior ot' the outercasing at its other end. By this arrangement the outer casing is held inengagement with the teeth 0f the col- 9o lar on the lower end of theinner casing.

By the construction of key before described it will be observed that thesame may be ad justed upon the key -post of any watch, and

that the watch may be wound without removing the key from the post orthe hand from the key.

Having thus described my invention, I claiml. In a watch-key, thecombination, with an xoo outer casing, of an inner casing. carrying acolletr7 said collar and outer casing having engauging ratchet-teeth andclamping-jaws for engaging the key-post, as set forth.

2. In a. watch-key, the combination, withan outer easing, of an innereasing carrying acollar, said 'collar and outer easing having engagingratchet-teeth, a. spring inelosing the upper end of the inner easing andbearing at its upper end against 'nibs projecting from said casing7` andat its lower end against an interior shoulder' on the outer easing, asset forth.

3. The combination, with an outer casing, of an inner'oasing carrying acollar, said 6011er and outer easing having engaging rateh et-teeth,clamping-jaws in the inner easing, a pin fitting between the same, aspringactuetted pushbar having spring-arms to engage the'notched upperends ofthe clamping-arms, `and a spring 2o Y' for holding the outercasing in engagement with the collar on the lower end of the innercasing, as set forth. I

4. In a. watch-key, the combination, with vau` j presence of twoWitnesses. n

' MoRroN WALLACE GEARY;

Witnesses: B. F. GEARY, J oHN T. ZIMMERMAN.

